I don't get less curl from using too much product just shrinkage depending on what i'm using I like my hair to be defined, frizz free touchable but still "big" if i over do the prodcuts its looks nice to other people to me feels thinner.
And I also play with my hair until it's dry - mostly to break it up get rid of any crunch that may be waiting to happen.
I find the best way to do my hair is put my products on when it's soaking wet, that way if i *do* happen to put too much on some how it doesn't makea difference.